OpenGL is used in games, with newer versions supporting better graphics.
Asus Cerberus GTX 1070 Ti Advanced: 12
18. semiconductor size
A smaller size indicates that the process to create the chip is newer.
AMD Radeon RX 570: 1nm
19. GPU turbo
When the GPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
Gigabyte GeForce GTX 1080 Xtreme Gaming: 1936MHz
20. render output units (ROPs)
The ROPs are responsible for some of the final steps of the rendering process, writing the final pixel data to memory and carrying out other tasks such as anti-aliasing to improve the look of graphics.
PowerColor Radeon R9 295X2: 128
21. has a HDMI output
Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.